论文部分内容阅读
在主动-被动分解同步的基础上,提出了一种利用不同超混沌系统的驱动函数切换调制实现数字保密通信的方案.根据二进制信号“0”和“1”的传输情况交替发射两个不同的驱动函数,这就增加了发射信号的复杂度,减少了信号的相关性.且通过进行多次非线性变换加密,进一步设置了新的密钥,使得基于预测法的攻击完全失效.理论分析和模拟结果均表明本方案在实现超混沌数字保密通信时的有效性.
On the basis of active-passive decomposition and synchronization, a scheme is proposed to realize digital secure communication by using the switching of the drive function of different hyperchaos systems. According to the transmission of binary signals “0” and “1”, two different Which increases the complexity of the transmitted signal and reduces the signal correlation.And the new key is further set by performing the non-linear transformation encryption multiple times, so that the attack based on the predictive method completely fails. Theoretical analysis and Simulation results show the effectiveness of this scheme in realizing hyperchaotic digital secure communication.